What is a common consequence of cross-connections?

A common consequence of cross-connections is the contamination of the potable water supply. Cross-connections occur when there is a physical connection between a drinking water system and a non-potable water source, which can lead to backflow. Backflow can happen due to changes in pressure in the water system, allowing contaminants from the non-potable source to enter the safe drinking water supply. This contamination poses serious health risks, as it can introduce harmful substances or pathogens into the water that people consume.

Understanding the implications of cross-connections is critical for maintaining water quality and public health. Properly designed and maintained plumbing systems, along with proper backflow prevention devices, are essential for ensuring that potable water remains uncontaminated.